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Shearing force measuring device and measuring method suitable for real-time dynamic hybrid tests

A dynamic test and measurement device technology, applied in the direction of measurement devices, variable measurement arrangement, measurement force, etc., can solve the problems of cumbersome pasting of strain gauges, limited applicable conditions, heavy workload, etc., and achieve convenient and applicable installation and measurement process Strong, low-cost effect

Inactive Publication Date: 2014-08-27
TSINGHUA UNIV
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  • Application Information

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Problems solved by technology

[0003] In order to overcome the shortcomings of cumbersome pasting of strain gauges, limited applicable conditions, and heavy workload in the calibration process in the existing strain measurement method, the present invention provides a shear force measurement device and measurement method suitable for real-time coupling dynamic tests

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  • Shearing force measuring device and measuring method suitable for real-time dynamic hybrid tests

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Embodiment Construction

[0017] The present invention provides a shear force measurement device and measurement method suitable for real-time coupling dynamic tests. The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0018] The structure of the shear measuring device of the present invention is as follows: figure 1 As shown, the connecting steel plate 2 with a smooth surface is fixed on the vibrating table 1, and three parallel linear guide rails 4 are fixed on the connecting steel plate 2, and rigid sliders 3 are respectively installed on each guide rail 4; the fixing plates 6 are arranged on three Directly above the guide rail 4, and bolted to each slider 3, the upper part of the fixed plate 6 is used to place the physical substructure; an acceleration sensor 5 is installed on the fixed plate 6 to measure the acceleration; 1 is installed with a fixed support 9, and the two fixed supports 9 are connected by a screw 8, and an...

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Abstract

The invention belongs to the technical field of shearing force measurement and in particular relates to a shearing force measuring device and measuring method suitable for real-time dynamic hybrid tests. The shearing force measuring device is arranged on a vibrating bench, a model to be measured is fixed to a fixing plate of the shearing force measuring device, the model to be measured can slide along a slide rail in the horizontal direction to avoid restraint in the horizontal direction to the model to be measured, an axial force sensor is arranged between the model to be measured and a fixed support, and the shearing force at the bottom of the model to be measured can be converted into the axial force measured by the axial force sensor. By means of the shearing force measuring device and measuring method, complex processes of bonding strain foils and calibrating stress-strain curves are removed. The unidirectional horizontal shearing force at the support position can be measured by installing the shearing force measuring device between the model and a foundation. The shearing force measuring device is convenient to install. The shearing force measuring device and measuring method are convenient in measuring process, high in measuring accuracy, strong in applicability, low in cost and strong in market competitiveness.

Description

technical field [0001] The invention belongs to the technical field of shear force measurement, in particular to a shear force measurement device and a measurement method suitable for real-time coupling dynamic tests. Background technique [0002] The real-time coupled dynamic test method is a new type of structural dynamic test method, and the shear force measurement at the interface between the physical substructure and the numerical substructure in the test is a very important technical requirement of this method. At present, the known method of measuring shear force is realized by strain measurement. This method is only applicable to the elastic rod structure where the local strain at the support is easy to measure. The measuring equipment includes: metal strain gauges, signal lines and supporting data acquisition systems. Stick the strain gauges on both sides of the rod at the support. When the structure deforms under the action of dynamic load, the deformation of the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01D1/16G01L1/26
Inventor 王进廷桂耀朱飞金峰
Owner TSINGHUA UNIV